That was an amazingly capable bit of software, sold as a games cheat but the best debugger for RISC OS. I learned so much ARM assembler with it, and also how f

That was an amazingly capable bit of software, sold as a games cheat but the best debugger for RISC OS. I learned so much ARM assembler with it, and also how floppy disc copy protection worked :) It was like having the whole OS in a a virtual machine.